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Summary of Contents for ADTRAN 239 H4R
- Page 1 ® HDSL4 239 H4R Repeater Installation and Maintenance Practice Document Number: 61223445L2-5B CLEI: T1R6189D_ _ June 2009...
- Page 2 In no event will ADTRAN be liable for any special, incidental, or consequential damages or for commercial losses even if ADTRAN has been advised thereof as a result of issue of this document.
- Page 3 Revision History Revision Date Description July 2008 Initial release. June 2009 Updated CLEI Code Conventions The following typographical conventions are used in this document: This font indicates a cross-reference link. indicates screen menus, fields, and parameters. This font indicates keyboard keys ( ).
- Page 4 HDSL4 239 H4R Repeater Installation and Maintenance Practice Training ADTRAN offers training courses on our products. These courses include overviews on product features and functions while covering applications of ADTRAN product lines. ADTRAN provides a variety of training options, including customized training and courses taught at our facilities or at customer sites.
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Page 5: Table Of Contents
ADTRAN Technical Support ........ - Page 6 239 H4R Capacity Guidelines for ADTRAN Housings ........
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Page 7: Introduction
ADTRAN HDSL4 239 H4R Repeater (239 H4R, P/N XXXXXXXLX) regenerates the HDSL4 signal, extending the range of the HDSL4 circuit. The 239 H4R has enhanced troubleshooting capabilities in the presence of shorts or ground faults on the customer side of the repeater. -
Page 8: Description
DS1 to customer equipment. The H4TU-C provides testing, provi- sioning, and performance monitoring capabilities that address circuit status. Features The List 2 239 H4R has the same basic features as the List 1 239 H4R (P/N 61223445L1), and enhanced features and capabilities. Basic Features The basic features of the 239 H4R include the following: •... -
Page 9: Ground Fault Or Short Detection
Introduction Ground Fault or Short Detection If a short or ground fault is detected, the 239 H4R will keep the relays open and continue to monitor the customer-side interface until the fault condition clears. During the fault condition, the network-side of that repeater can function normally, allowing for synchroni- zation and loopback/sectionalization testing up to that repeater. -
Page 10: Compliance
Voltages up to –200 VDC with respect to ground and between individual telecommunications conductors may be present. The HDSL4 239 H4R Repeater (P/N XXXXXXXLX) is NRTL Listed to the applicable UL standards. The HDSL4 239 H4R Repeater (239 H4R) meets or exceeds all the applicable requirements of NEBS, Telcordia GR-63-CORE, and GR-1089-CORE. - Page 11 Introduction NOTE The HDSL4 input and output ports are classified as Type 3 and 5, as defined in Appendix B of GR-1089-CORE Issue 4, and meets the lightning and power fault criteria with primary protectors that meet any of the voltage limits of GR-974-CORE or GR-1361-CORE (i.e., carbon blocks, gas tubes, and solid state).
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Page 12: Compatibility
H4TU-C in use. A 239 H4R provides DS1 transport on all revised resistance design (RRD) 26 AWG loops, 24 AWG loops, or both. Three 239 H4R repeaters can be added to extend the range of a loop. -
Page 13: Installation
SUBJECT TO ELECTROSTATIC DAMAGE OR DECREASE IN RELIABILITY. HANDLING PRECAUTIONS REQUIRED. After unpacking the 239 H4R, inspect it for damage. If damage has occurred, file a claim with the carrier then contact ADTRAN Customer Service. Refer to “Appendix A, Warranty”... -
Page 14: Installing The Module
A retainer latch is available for securing the 239 H4R in the case. • When the 239 H4R first powers up, it runs a power up self-test. Once the power up self- test is complete, the status LEDs reflect the true state of the hardware (see... -
Page 15: Front Panel Leds
Installation Front Panel LEDs The 239 H4R provides front panel LEDs that display status information. Table 3 lists the 239 H4R LEDs and status descriptions. Table 3. Front Panel LEDs Label Status Description No span power is present LP1/LP2 NET... -
Page 16: Feature Details
200 ms can be bridged. Bad Splice Detection This 239 H4R supports the Runtime TScan 2.0™ Bad Splice Detection (TScan w/BSD) feature, an ADTRAN proprietary, non-intrusive algorithm for detection of anomalies (bad splices) in the copper plant. This feature monitors the cable pair during runtime for the presence of bad splices that can potentially impact service. -
Page 17: View Splice Results Screen
Feature Details Splices that are varying in impedance cause the HDSL data pump to see a reduced and/or fluctuating signal quality (margin). The HDSL data pump attempts to track these changes. When the changes become too severe, errors or loss of synchronization result. View Splice Results Screen Access to the Bad Splice Detection feature is through the Troubleshooting screen, using the craft access terminal of the H4TU-C or H4TU-R. -
Page 18: Fast Retrain
HDSL4 239 H4R Repeater Installation and Maintenance Practice Fast Retrain Fast Retrain is an ADTRAN-proprietary feature that minimizes downtime when an inter- mittent, non-power related impairment (bad splice, noise burst, etc.) affects the HDSL loop and cannot be bridged. When such an impairment occurs after achieving HDSL synchronization, Fast Retrain is invoked to restore service within 5 to 7 seconds. -
Page 19: Connections
All connections take place through card edge connectors. Table 4 provides the card edge pin assignments. CAUTION The 239 H4R dissipates a maximum of 5.4 watts. CAUTION Ensure that the chassis ground is securely connected to the OSP apparatus case. -
Page 20: Hdsl4 Deployment Guidelines
Signal-to-Noise Ratio Margin and Attenuation status indications for the circuit. 239 H4R Capacity Guidelines The 239 H4R is designed for installation in a prewired apparatus case. Table 5 Table 6 define the capacity guidelines for deployment. The housing capacity numbers are based on testing results. -
Page 21: Table 5. 239 H4R Capacity Guidelines For Adtran Housings
Table 5. 239 H4R Capacity Guidelines for ADTRAN Housings Part Description CLEI Code Slots Stub H4R Capacity Recommended Slot Material Number Assignments Above Below Above Below Ground Ground Ground Ground 1150027L1 239/439 Housing DDMOABA1MA Stainless/Polymer 1150027L2 239/439 Housing DDMOBBA1MA Stainless/Polymer... -
Page 22: Table 6. 239 H4R Capacity Guidelines For Other Housings
Table 6. 239 H4R Capacity Guidelines for Other Housings Manufacturer Description Manufacturer’s Part Slots H4R Capacity Recommended Slot Material Number Assignments Above Below Above Ground Below Ground Ground Ground Radiator II SPX-HRXC-30-AG- Stainless Steel 016GT Radiator SPX-HRXC-30-B1 Stainless Steel Circa... -
Page 23: Maintenance
Maintenance MAINTENANCE The 239 H4R requires no routine maintenance for normal operation. Do not attempt repairs in the field. Repair services may be obtained by returning the defective unit to ADTRAN. Refer to “Appendix A, Warranty” for further information. In case of equipment malfunction, perform an in-band loopback from the Central Office. If a malfunction is confirmed, replace the unit. -
Page 24: Specifications
HDSL4 239 H4R Repeater Installation and Maintenance Practice SPECIFICATIONS Table 7 lists the specifications for the 239 H4R. Table 7. 239 H4R Specifications Specification Description Environmental Operating Temperature: –40°C to 70°C Storage Temperature: –40°C to 85°C Relative Humidity: 95 percent maximum at 50°C, noncondensing Maximum Current Draw: 0.025 A maximum at –48VDC... - Page 25 Specifications Table 7. 239 H4R Specifications Specification Description Tests Loopback initiated with in-band codes or from Diagnostics: H4TU-C or H4TU-R craft interface Compliance UL 60950 GR-63-CORE GR-1089-CORE NEBS Level 3 (SR-3580) FCC 47CFR Part 15, Class A Part Number HDSL4 239 H4R Repeater:...
- Page 26 HDSL4 239 H4R Repeater Installation and Maintenance Practice This page is intentionally blank. 61223445L2-5B...
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Page 27: Warranty
Appendix A Warranty WARRANTY AND CUSTOMER SERVICE ADTRAN will replace or repair this product within the warranty period if it does not meet its published specifications or fails while in service. Warranty information can be found at www.adtran.com/warranty. Refer to the following subsections for sales, support, Customer and Product Service (CAPS) requests, or further information. - Page 28 ® Carrier Networks Division 901 Explorer Blvd. Huntsville, AL 35806...
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